Hello all, I have a older 120v spa that overnight developed a short.
The spa is on a cement slab and if I stand on the cement barefooted, I
get a shock like tingling in the fingers. When I turn on the pump, it
gets a bit worse. I have a GFCI and tested it with a ground tester and
all good. I went one by one and unplugged the heater, the circ pump
and then finally the main pump. Still getting a small shock. Any help
would be appreciated.
The only thing I have done since yesterday is to add muriatic acid to
get my TA down. I added about a cup last night, ran the jets for a few
and covered it up.
GFI at the main panel or GFI on the plug....?
You tested it how? With a ground fault circuit tester?
I would turn it off.......and do some investigation before testing with bare
any other electrical devices in or near the tub.
Is your main panel grounded well?
Is the ground on your circuit in good shape.....
No neutral and ground mixup?
Muratic acid is like making a battery? hummmm
Several years ago as a utility employee I ran a service call to a house
where a guy had gotten out of his pool, touched a gate on a chain link
fence, and been electrocuted. We did a lot of looking around because the
call made no sense. What we found was that he had run a single wire from his
pool motor hot to the circuit breaker. At the pump equipment pad, he ran a
short wire from the pump neutral lead to a ground rod. So when the pump came
on, the return was literally the ground. When he touched the chain link gate
near the panel, he was lit up. Terrible.
Make sure all three wires (Hot, neutral and ground) are good. If the spa is
old you really have no idea how the internal wiring is. Is the service wire
run underground or above ground? I have seen wire run uderground fail with
age. If above, is it in conduit, is the insulation good? Is it a dedicated
circuit? Is it powered off a sub-panel or the main panel? There are a lot of
things to look at. First isolate the circuit and make sure the wiring is
all good. Interesting thought about the battery. Disconnect the circuit
completely and see. Is the circuit breaker good? I'd disconnect the hot only
and see what happens (pull the breaker off the panel). Lots to do. I
wouldn't use that spa, but maybe you could invite my ex-wife over?
An electrician will possibly know best what to do with it. I personally
would keep away of it.
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I am not sure this has anything to do with your problem. We had an
electrical problem similar to what you are talking about. I would get a mild
shock if I put my hand in the water of my washer. I also got one once on the
front porch when I was barefooted in the rain and I opened the screen door.
We had three different electricians over a few years and no one could find
Finally we had to have our water pump replaced. When they pulled it from
it's 78 foot deep home they found the casing had vibrated for so long there
was a hole in it. This was the cause of my shock. I had never noticed the
pump was running at the time I got the shocks. When we put in a new pump put
in and I had no more shocks. They put a rubber ring around the new one so it
could not rub against the well pipe when it ran.
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